Elbow (elbow) in the piping system, the piping is to change the direction of the elbow tube. Press angle points, 45 ° and 90 ° 180 ° three most commonly used, according to project needs in addition also includes other non-normal 60 ° angle bend. According to the production process can be divided into: Molded elbow, injection elbow, socket elbow. Other names: 90 degree elbow, right-angle bend, bend, etc. love. Elbow and pipe junctions ways: directly welded (most common way) flange connection, hot melt connection, fused connection, thread connection and socket type connection and so on. Welded elbow English (Welded elbow) is molded plastic particles elbow, which is connected to the elbow connection form and PP pipe welded connections. International standard ISO161 and Ministry of Chemical Industry Standard HG20539. Can additionally manufacture according to customer demand. The basic use of molding, the product has high strength, corrosion resistance, air tightness, long life, easy installation and maintenance and other characteristics; corrosion resistant, high temperature resistant, lightweight, non-toxic, non-polluting, high strength, seamless operation sensitive, convenient removable parts, low price advantage, can be widely used in petroleum, chemical, chlor-alkali, metallurgical, pharmaceutical, electroplating. And other industries, products won praise users. In order to meet market demand, is to open a molded socket pipe fitting mold, a molding PP socket elbow, a molding PP socket tee. The first specification Φ315, Φ280, Φ250, Φ160; other models subsequently added. PP Tee, PP tee fittings with international standards ISO161 and the Ministry of Chemical Industry Standard HG20539 PP Tee for pipe fittings, pipe fittings. Also known as pipe tee or tee pipe fittings, tees, to be used in the main channel at the branch pipe. Tee has equal diameter and diameter of the points, and so on takeover tee ends are the same size; the same size - Reducing tee competent to take over, and over size is smaller than the head of the branch pipe over size. Window Φ25-1000mm PP butt tee is molded elbow, which is directly connected to form links with the plastic pipe welding, butt welding tee PP major manufacturing standards generally HG20539, ISO161